Redundancy
12.2
Media Redundancy Protocol (MRP)
153
UM Config GRS
Release
8.0
09/2019
12.2.5 Example Configuration
A backbone network contains 3 devices in a line structure. To increase the availability of the
network, you convert the line structure to a redundant ring structure. Devices from different
manufacturers are used.All devices support MRP. On every device you define ports 1.1 and 1.2 as
ring ports.
When the primary ring link fails, the Ring Manager sends data on the secondary ring link. When the
primary link is restored, the secondary link reverts back to the backup mode.
Figure 30: Example of MRP-Ring
RM = Ring Manager
—— main line
- - - redundant line
The following example configuration describes the configuration of the Ring Manager device (1).
You configure the 2 other devices (2 to 3) in the same way, but without activating the
Ring manager
function. This example does not use a VLAN. You specify 200 ms as the ring recovery time. Every
device supports the advanced mode of the Ring Manager.
Set up the network to meet your demands.
Configure every port so that the transmission speed and the duplex settings of the lines
correspond to the following table:
Table 27: Port settings for ring ports
Port type Bit rate Autonegotiation
(automatic
configuration)
Port setting Duplex
TX 100 Mbit/s off on 100 Mbit/s full duplex (FDX)
TX 1 Gbit/s on on -
Optical 100 Mbit/s off on 100 Mbit/s full duplex (FDX)
Optical 1 Gbit/s on on -
Optical 10 Gbit/s - on 10 Gbit/s full duplex (FDX)
RM
12 3
1.1 1.2 1.1 1.2 1.1 1.2
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